Cracked Flu Gas Fireplace

elcid99May 10, 2010

I purchased a house where one of the fireplaces wood burning fireplaces was converted to gas. I noticed the top flu tile is severely cracked and I'm assuming there are other cracked tiles. Since it's not a wood burning fireplace, what are the risks of using this fireplace, CO2? Thanks

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I'm confused. The flue, as I understand it, is the damper that closes off the vent that goes up the chimney. It is typically made of metal, probably cast iron.

If yours is made of tiles and has a cracked tile, the problem would be that, when you want to close off the chimney, when you do not use the fireplace, you cannot close it off all together. In cold weather, you would feel a draft, and you would be losing heat. That would be as bad as having a door that does not seal properly. Similarly, in warm weather, you would be losing air conditioned air, if you have air conditioning.

Do I understand you correctly?

    Bookmark   May 14, 2010 at 11:51AM
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